Home / 121,454.40-182,128.06-54,891.84

Finding the Fourth Proportional to 121,454.40, 182,128.06 and 54,891.84

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Solution

The fourth proportional to 121,454.40, 182,128.06 and 54,891.84 is: 82,313.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,454.40 : 182,128.06 = 54,891.84 : x
  2. Step 2: Convert to fraction form
    121,454.40/182,128.06 = 54,891.84/x
  3. Step 3: Cross multiply
    121,454.40x = 182,128.06 × 54,891.84
  4. Step 4: Simplify right side
    121,454.40x = 9,997,344,329.03
  5. Step 5: Solve for x
    x = 9,997,344,329.03/121,454.40
  6. Step 6: Final answer
    x = 82,313.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.